Wong i



(No Model.) 4

W11. GONG. CLOTHES WRINGER.

No. 510,171. Patented-Dec. 5,1898

UNITED STATES PATENT OFFI E.

WONG I. cone, OF NEW YORK, N. Y.

CLOTH ES-WRINGER.

SPECIFICATION forming part of Letters Patent'lN'o. 510,171, dated December ,5, 1893.

Application filed-March 24, 1893- Serial No. 467,431. (No model) To all whom it may concern:

Be it known that I, WVONG I.,GONG, residing in the city and county of New York, in the State of New York, have invented a new and useful Improvement in Olothes-Wringers, of which the following is a specification.

My improvement relates to the springs. I will show the invention as applied with ash or other elastic wood springs. I reinforce their action with soft vulcanized rubber applied in a form adapted to give more than the usual range of action. The rubber is molded in a form of hollow cylinders which are laid on their sides in nearly corresponding cavities in bearing boxes, which latter are provided with a fair bearing on the adjacent surfaces of the wood. The hollow cylinders are flattened more or less under the varying strains to allow the required yielding action. One of these hollow cylinders thus mounted will suffice for small wringers. I prefer two for the larger sizes. Three may be used in extreme cases.

My invention develops nearly uniform action in the rubber. When the rolls are in contact, the rubber will distend to very nearly a cylindrical form; when the wringer takes a.

thick mass and the rolls are forced apart by the yielding of the springs, the hollow cylinders of rubber, become flattened and contribute much to the yielding action while only slightly increasing the tension of the springs.

The accompanying drawings form a part of this specificationand represent what I consider the best means of carrying out the invention.

Figure 1 is a face view of the wringer having my invention with two of the hollow cylinders. Fig. 2 is a vertical section on the line 2-2 in Fig. 1. The remaining figures are on a larger scale. Fig. 3 is a face View of my hollow rubber cylinders and their inclosing box detached. Fig. 4. is a vertical section. Fig. 5 is a perspective view of the lower box, and Fig. 6 is a perspective view of one of my hollow cylinders detached.

.jected in practice.

Similar letters of reference indicate corresponding parts in all the figures where they appear.

A is the framing of the wringer, B and O the rollers, and D, D, the thumb-screws which adjust the pressure of the springs urging the rolls together.

E, F, are wooden springs receiving the force of the screws and transmitting it to the boxes G which press on the journals of the upper roller.

I, I, are boxes of hard wood or metal,having nearly semi-cylindrical cavities ion their faces and having, at the back of each,flanges I which are let into the springs at each side in their midlength and keep the boxes reliably in place.

J, J, are hollow cylinders of soft vulcanized rubber inclosed in the nearly semi-cylindrical cavities in the boxes. The construction allows these hollow cylinders to flatten under a great pressure and to again resume their cylindrical form as the pressure is relaxed.

The form of the rubber gives a reliable and approximately uniform action under the greatly varying pressures to which it is sub- The flanges I being let into the wood resist displacement of the boxes either transversely or longitudinally without appreciably weakening the spring.

I claim as my invention Ina clothes-wringer, the boxes I, having flanges-I and rounded cavitiest' in combination with the wood springs E, F, recessed to receive said flanges, and with a soft rubber spring J in the form of a hollow cylinder inclosed in such cavities, all arranged to serve as herein specified.

In testimony that I claim the invention above set forth I affix my signature in presence of two witnesses.

WONG 1. Gone.

Witnesses:

W. P. E. JOHNSON, ,ABRAM L. HIRsH. 

